My question involves a traffic ticket from the state of: California

Hello,

I got a parking ticket and the parking ticket enforcement is trying to force me to pay for the parking ticket with only check or money order. I insisted that I should be allowed to pay with cash. Both of those other two methods will cost me more money on top of an already extremely expensive parking ticket, which, I think is ludicrous because they are already getting free money from me. Cash says on it that "This Note is legal tender for all debts, public and private" It seems like that means I should be able to pay for the parking ticket with cash. How can I force the parking enforcement to accept cash?

Thank you for your help.